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Repair
P 3/ 6
1) Remove Bumper from Hammer case complete. (Fig. 2)
2) Remove two Set plates with which Housings L and R are assembled to one
another as follows:
Insert a small slotted screwdriver through the punched hole of Set plate and
move Set plate in the direction of the arrow using the screwdriver. (Fig. 3)
3) Remove Housing R from Housing L by removing Bind PT3x6 tapping screws
(6pcs.).
4) Remove Hammer case section and DC motor section together at one time,
and then separate Hammer case section from DC motor section.
5) Clamp the flats of Hammer case complete in a vise with 1R041 as illustrated
in Fig.4, and fit Socket 27-50 into the hexagon of Bearing box complete.
Turn Socket 27-50 clockwise using 1R224 and 1R223 to remove the hexagon
of Bearing box complete. Hammer section, Internal gear 43 and Bearing box
complete can be separated from Hammer case complete.
1) Put Bearing box on a worktable and stack Internal gear 53, Hammer section
and Hammer case complete (including Anvil and Bit sleeve, etc.) vertically
on Bearing box as illustrated in Fig. 5. Then fasten Bearing box to Hammer
case complete by turning Socket 27-50 counterclockwise to 25 up to 30N.m.
with 1R224 and 1R223.
Note: Internal gear 43 is directional as illustrated in Figs. 5 and 6. Therefore;
fit the internal ring portion into the groove of Bearing box.
fit six protrusions into the grooves of Hammer case complete.
2) Engage the pinion gear of DC motor with the assembled Hammer case section.
3) Set the assembled Hammer case section with DC motor to Housing L.
4) Do the reverse of the disassembling step to fix Housing L to Housing R. Refer to Fig. 3.
5) Mount Bumper on Hammer case complete. (Fig. 2)
[2] DISASSEMBLY/ASSEMBLY
[3]-1. Hammer case section
DISASSEMBLING
ASSEMBLING
Fig. 2
Fig. 5 Fig. 6
Fig. 4
vise
1R224
1R223
1R041
Socket 27-50
(134844-7)
flats of
Hammer
case complete
Fig. 3
Housing L
Housing R
small slotted
screwdriver
Set plate
(2pcs.)
Bumper
hexagon of
Bearing box
complete
Hammer case complete
(including Anvil and Bit sleeve, etc.)
Hammer section
Internal gear 43
Groove for
receiving
Internal gear 53
Bearing box complete
protrusions of
Internal gear 43
internal ring portion
of Internal gear 43